<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      let second = prompt("请输入秒数");
      function getTime(t) {
        // document.write(t);总的秒数
        h = parseInt((t / 60 / 60) % 24);
        m = parseInt((t / 60) % 60);
        s = parseInt(t % 60);
        h = h < 10 ? "0" + h : h;
        m = m < 10 ? "0" + m : m;
        s = s < 10 ? "0" + s : s;
        // document.write(h, m, s);
        return `转换完毕为${h}小时${m}分${s}秒`;
      }
      let str = getTime(second);
      document.write(str);
    </script>
  </body>
</html>
